The Microsoft Exchange Server installed on the remote host is missing security updates. It is, therefore, affected by a remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary code.
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(156745);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/20");
script_cve_id("CVE-2022-21846", "CVE-2022-21855", "CVE-2022-21969");
script_xref(name:"MSKB", value:"5008631");
script_xref(name:"MSFT", value:"MS22-5008631");
script_xref(name:"IAVA", value:"2022-A-0009-S");
script_name(english:"Security Updates for Exchange (January 2022)");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft Exchange Server installed on the remote host is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The Microsoft Exchange Server installed on the remote host is missing security updates. It is, therefore, affected by
a remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized
arbitrary code.");
script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/en-us/help/5008631");
script_set_attribute(attribute:"solution", value:
"Microsoft has released KB5008631 to address this issue.");
script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-21846");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2022-21969");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/01/11");
script_set_attribute(attribute:"patch_publication_date", value:"2022/01/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/01/14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:exchange_server");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ms_bulletin_checks_possible.nasl", "microsoft_exchange_installed.nbin");
script_require_keys("SMB/MS_Bulletin_Checks/Possible");
script_require_ports(139, 445, "Host/patch_management_checks");
exit(0);
}
include('install_func.inc');
include('smb_func.inc');
include('smb_hotfixes.inc');
include('smb_hotfixes_fcheck.inc');
get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');
exit_if_productname_not_server();
var bulletin = 'MS22-01';
var kbs = make_list(
'5008631'
);
if (get_kb_item('Host/patch_management_checks'))
hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
var install = get_single_install(app_name:'Microsoft Exchange');
var path = install['path'];
var version = install['version'];
var release = install['RELEASE'];
var port = kb_smb_transport();
if (
release != 150 && # 2013
release != 151 && # 2016
release != 152 # 2019
) audit(AUDIT_INST_VER_NOT_VULN, 'Exchange', version);
var kb_checks =
{
'150' :
{
'23' : '15.00.1497.028',
'unsupported' : 22
},
'151' :
{
'21' : '15.01.2308.021',
'22' : '15.01.2375.018',
'unsupported' : 20
},
'152' :
{
'10' : '15.02.0922.020',
'11' : '15.02.0986.015',
'unsupported' : 9}
};
var cu = 0;
if (!empty_or_null(install['CU']))
cu = install['CU'];
var kb = '5008631';
var unsupported = FALSE;
if (kb_checks[release]['unsupported'] >= cu) unsupported_cu = TRUE;
else if (empty_or_null(kb_checks[release][cu])) audit(AUDIT_HOST_NOT, 'affected');
var fixedver = kb_checks[release][cu];
if ((fixedver && hotfix_is_vulnerable(path:hotfix_append_path(path:path, value:"Bin"), file:'ExSetup.exe', version:fixedver, bulletin:bulletin, kb:kb))
|| (unsupported_cu && report_paranoia == 2))
{
if (unsupported_cu)
hotfix_add_report('The Microsoft Exchange Server installed at ' + path +
' has an unsupported Cumulative Update (CU) installed and may be ' +
'vulnerable to the CVEs contained within the advisory. Unsupported ' +
'Exchange CU versions are not typically included in Microsoft ' +
'advisories and are not indicated as affected.\n',
bulletin:bulletin, kb:kb);
set_kb_item(name:'SMB/Missing/' + bulletin, value:TRUE);
hotfix_security_hole();
hotfix_check_fversion_end();
exit(0);
}
else
{
hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, 'affected');
}
Vendor | Product | Version | CPE |
---|---|---|---|
microsoft | exchange_server | cpe:/a:microsoft:exchange_server |